The Nature of Lygus Bug Injury to Lima Beans1

Elmore, John C.

doi:10.1093/jee/48.2.148

Cited by 9 publications

(4 citation statements)

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“…Pod penetration and consequent cellular damage by Lygus spp. in lima beans (Phaseolus lunatus L.), and green beans (P. vulgaris L.) have been reported by Elmore (1954) and Flemion et al (1954). However, no such reports exist in respect of feeding by coreoid pod-sucking bugs on cowpea.…”

Section: Introductionmentioning

confidence: 67%

Histological studies of damage by pod-sucking bugs (Heteroptera: Coreoidea) associated with cowpea Vigna unguiculata ssp. unguiculata in Nigeria

Soyelu

Akingbohungbe

2006

Bull. Entomol. Res.

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Histological studies were conducted on cowpea pods fed upon by the coreoid pod-sucking bugs, Anoplocnemis curvipes (Fabricius), Clavigralla tomentosicollis Stå;l, C. shadabi Dolling, Riptortus dentipes (Fabricius) and Mirperus jaculus (Thunberg). Various degrees of tissue and cellular disruption were apparent, especially in the brachysclereids. They were manifested in terms of plasmolysis, cell enlargement and cell wall disintegration depending on the coreoid species involved. The feeding site and its periphery had all the cells of the brachysclereids plasmolysed, with the parenchyma having broken cell walls in the case of A. curvipes. Riptortus dentipes and M. jaculus showed similar patterns of feeding activity but less extensive levels of damage. The Clavigralla spp., however, caused cell enlargement in the brachysclereids, and broken cell walls in both the brachysclereids and the parenchyma. Damage symptoms were observed in cells far away from the feeding sites of the bugs, suggesting the possibility of sucrase activity which has been reported to cause osmotic pump feeding in the Coreidae.

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Section: Introductionmentioning

confidence: 67%

Histological studies of damage by pod-sucking bugs (Heteroptera: Coreoidea) associated with cowpea Vigna unguiculata ssp. unguiculata in Nigeria

Soyelu

Akingbohungbe

2006

Bull. Entomol. Res.

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“…Plant bugs use piercing and sucking mouth parts (Tingey and Pillemer 1977) to inject salivary enzymes that macerate host plant tissues, and ingest the resulting fluids (Miles 1972; Cooper et al 2013). In early growth stages of legumes, feeding can result in shedding of buds, flowers, and pods and consequent reduced quantity of yield (Elmore 1955). Feeding on later growth stages can result in seed pitting (Baker et al 1946; Elmore 1955) that reduces seed quality.…”

Section: Introductionmentioning

confidence: 99%

“…In early growth stages of legumes, feeding can result in shedding of buds, flowers, and pods and consequent reduced quantity of yield (Elmore 1955). Feeding on later growth stages can result in seed pitting (Baker et al 1946; Elmore 1955) that reduces seed quality.…”

Section: Introductionmentioning

confidence: 99%

Plant bugs (Hemiptera: Miridae) on field beans and soybeans in Manitoba, Canada: species composition and seasonal occurrence

Nagalingam

Holliday

2015

Can Entomol

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In Manitoba, Canada, commercial soybeans and two types of field beans, navy and pinto, were sampled for plant bugs. At the centre and margins of 36 fields, sweep net and tap tray samples were taken weekly. In all three crops, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae) comprised > 78% and Adelphocoris lineolatus (Goeze) (Hemiptera: Miridae) < 10% of adult mirids. Species composition varied among years but not among crops. For Lygus Hahn, nymphs were 46% of the catch in trays and 23% in sweeps, but total Lygus catch in trays was > 2% of that in sweeps. Catch/ sample effort was similar at field centres and margins for both Lygus adults and nymphs. Lygus lineolaris reproduced and developed in all three crops. In field beans, Lygus adults were first collected in late vegetative and early pod set stages and late instar nymphs and adults were present from pod elongation until maturityresults consistent with immigration of first summer generation reproductive adults and development of the second generation in the crops. There was evidence of late season immigration of Lygus into all crops. There was no loss of seed quantity attributable to mirids in any of the crops; in field beans there was no evidence that mirids reduced seed quality.

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“…In most studies of Lygus spp. oviposition, eggs in a wide variety of host plants have been detected by visual observation, often with the aid of a dissecting microscope (Abel et al, 2010;Balachandran et al, 2014;Brent et al, 2011;Conti et al, 2012;Elmore, 1955;Noma and Strickler, 2000;Ugine, 2011Ugine, , 2012. During studies of L. hesperus egg development Spurgeon, 2012, 2013), it was observed that, despite careful examination, the numbers of eggs detected visually in pods of green bean (Phaseolus vulgaris L.) were often lower than the numbers of resultant nymphs (W.R.C.…”

mentioning

confidence: 99%

Accuracy of Lygus hesperus Knight (Hemiptera: Miridae) Egg Counts Improves with Egg Development

Spurgeon¹,

VanEkert²,

Elhoff³

2017

JCS

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The western tarnished plant bug, Lygus hesperus Knight, is a key cotton (Gossypium spp.) pest, managed primarily by application of insecticides according to nominal thresholds. Efforts to reduce reliance on insecticide-based tactics will require a more astute understanding of the physiological ecology of L. hesperus than is currently available. A key biological parameter that may be manipulated through cultural or genetic means is reproduction. Estimates of L. hesperus oviposition are commonly obtained by visual inspection, but the accuracy of those estimates has been questioned. Because the eggs swell during development, we hypothesized that delaying counts of eggs to permit some development might improve sampling accuracy. Estimates of L. hesperus egg numbers were obtained immediately after oviposition and again at three days after oviposition, and counts at both times were regressed with total eggs determined by the sum of either hatched eggs or the number of nymphs, and unhatched eggs. Sampler experience was a major factor influencing fidelity of egg counts with total eggs, but a single repetition of the experiment accompanied by knowledge of the results was sufficient to optimize sampler effectiveness. Regressions relating total eggs to counts, whether the counts were taken immediately after oviposition or after three days, were significant. However, compared with counts of newly-laid eggs, the regression relating egg counts at three days with total eggs was more stable and showed better agreement. These results can be used to maximize statistical power and minimize sampling errors in future examinations of L. hesperus oviposition.

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The Nature of Lygus Bug Injury to Lima Beans1

Cited by 9 publications

References 0 publications

Histological studies of damage by pod-sucking bugs (Heteroptera: Coreoidea) associated with cowpea Vigna unguiculata ssp. unguiculata in Nigeria

Histological studies of damage by pod-sucking bugs (Heteroptera: Coreoidea) associated with cowpea Vigna unguiculata ssp. unguiculata in Nigeria

Plant bugs (Hemiptera: Miridae) on field beans and soybeans in Manitoba, Canada: species composition and seasonal occurrence

Accuracy of Lygus hesperus Knight (Hemiptera: Miridae) Egg Counts Improves with Egg Development

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